Michele Triplett's Fingerprint Terms ©
A collection of over 1000 terms used in the Science of Fingerprint Identification.

Home \ Bottom
A \ B \ C \ D \ E \ F \ G \ H \ I \ J \ K \ L \ M \ N \ O \ P \ Q \ R \ S1 \ S2 \ T \ U \ V \ W \ XYZ

N-Dodecylamine Acetate
Chemical used in the preparation of the detergent solution in 
Physical Developer.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0

NAS Report
In 2005, the CFSO requested federal funds become available to support a variety 
of forensic disciples.  Congress asked the National Academy of Sciences (NAS) 
to research the needs of these forensic disciples to determine if the funds were 
needed.  On Feb 18, 2009, the NAS published its finding in a report titled 
“Strengthening Forensic Science in the United States – A Path Forward”.  
These findings became known as the NAS report.

The National Commission on Forensic Science (NCFS) was established in 2013 to give 
recommendations to the US Attorney General to enhance the practice and improve the 
reliability of forensic science. In April 2017, AG Jeff Sessions elected not to renew 
the commissions status.

National Crime Information Center.

NCIC Classification
An alpha/numeric system of fingerprint classification.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0

National Fingerprint Board (of England and Wales).  An adjunct to the ACPO.

Next Generation Identification.  The FBI's biometric database. Implemented in 2013.

National Institute of Standards and Technology.

The National Society of Fingerprint Officers was an organization that 
started in 1975.  This organization was later renamed 'The Fingerprint 

The common abbreviation for ‘No Value’, usually indication that an 
impression has no value for identification purposes.

A metric unit of measurement equal to 1 billionth of a meter.  Commonly 
used to measure light.

Nanoparticle Powder
A fluorescent fingerprint powder designed in 2003 by Professor Fred Rowell 
of the University of Sunderland, England, for latent print recovery. 
Nanoparticle powder is comprised of very small glass like nanoparticles 
imbedded with powder. The smaller particles adhere to older latent prints 
better than standard powders, and increase the quality of latent prints by 
producing better clarity and contrast.

Naphthalene Black
See Amido Black
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0

Nascent Ridge
Coming into existence.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2000 by Houghton Mifflin Company.
Published by Houghton Mifflin Company.

Also known as an incipient ridge, a rudimentary ridge or a subsidiary ridge.

National Bureau of Identification
See Bureau of Criminal Identification.

National Society of Fingerprint Officers

Negative Impression (Negative Print)
See Take Away Print.

Neumann, Cedric
Cedric graduated in 1998 from one of the oldest forensic academic program 
in the World (est. 1909), the University of Lausanne (Switzerland). He then 
specialized in the statistical interpretation of forensic evidence during 
his PhD research on the examination of ink evidence. The results of his PhD 
research were ultimately implemented at the United States Secret Service 
and granted him the ENFSI 2009 Emerging Forensic Scientist Award. 

From 2004 to 2010, Dr. Neumann worked as a Senior Forensic Scientist with 
the Forensic Science Service (FSS), in the United Kingdom, where he managed 
the Statistics and Interpretation Research Group. At the FSS, Dr. Neumann 
was involved with the statistical assignment of weight to various types of 
evidence, such as DNA, fingerprint and shoemark. Most notably, Dr. Neumann 
worked on the validation and implementation of an operational tool to 
statistically assess fingerprint evidence. 

In 2010, Dr. Neumann joined the Forensic Science program of the Eberly College 
of Science of the Pennsylvania State University. His main responsibilities 
are to teach criminalistics in the forensic undergraduate and graduate 
programs, and to develop the research program. In October 2010, Dr. Neumann 
was awarded a NIJ grant to support his research in fingerprint statistics. 
In 2013, Dr. Neumann left Penn State and join the faculty at South Dakota 
State University.

Ne'urim Declaration
In 1995, at the International Symposium on Fingerprints, a resolution 
was adopted.  It stated, "No scientific basis exists for requiring that 
a pre-determined minimum number of friction ridge features must be present 
in two impressions in order to establish a positive identification."  
This was a slight change from the 1973 IAI Resolution on the minimum 
number of characteristics needed to make an identification.  

Nile Red
A fluorescent dye stain used to visualize cyanoacrylate ester fumed 
friction ridge detail.   Optimum viewing is done with an alternate 
light source (450-560nm) and orange or red goggles. 

1,2,3-triketohydrindine hydrate.  Reagent that reacts with amino 
acids to develop friction ridge detail.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0

Ninhydrin was first prepared in 1910 by the English chemist, 
Siegfried Ruhemann, who also investigated the formation of the 
violet compound (Ruhemann's Purple, or RP) produced by ninhydrin's 
reaction with amino acids. The significance of this discovery to 
forensic science went unnoticed until 1954, when Oden and von Hoffsten 
reported the use of ninhydrin as a fingerprint developing reagent 
that reacts with amino acids secreted from sweat glands. Although 
the content of amino acids in a fingerprint residue is low (compared 
to the content of salts and fatty acids), the RP produced from the 
reaction of these amino acids with ninhydrin is deeply colored, and 
the developed fingerprints are usually highly visible. Thus, ninhydrin 
has long been known as one of the most affordable and useful reagents 
for visualization of latent fingerprints on porous surfaces (such as 
paper, wood, and walls).  In cases where the developed fingerprints 
are weak, secondary treatment with an aqueous zinc chloride solution 
can improve the print's line resolution quality. Zinc chloride-treated 
prints can be observed as "glowing" (fluorescent) when
illuminated with light of a certain wavelength.
"New Reagents for Development of Latent Fingerprints", NIJ 1995
http://www.ncjrs.org/txtfiles/finger.txt 06-19-2003

Nitric Acid
Acid used in a fuming technique to visualize friction ridge detail 
on select metal surfaces.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0

See Exclusion.
SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0

Another opinion:  A latent print that has not been individualized 
due to an exclusion or missed identification.  Or not being able 
to establishing an association with a group or individual item.

SWGFAST, Glossary - Consolidated 09-09-03 ver. 1.0

See Secretor.

A visual observance that the outer edges of a latent print is uneven 
or inconsistent, i.e. a notch exists.  This could be a distortional clue 
that this is two impressions and not just one.

Nutant Loop
Also referred to as a lazy loop or a drooping loop.  When the core of 
a loop droops over toward the delta.  This usually occurs in the 
opposite hand as the slant, especially in the index fingers.

Top \ Home
A \ B \ C \ D \ E \ F \ G \ H \ I \ J \ K \ L \ M \ N \ O \ P \ Q \ R \ S1 \ S2 \ T \ U \ V \ W \ XYZ


Copyright © 2002-2021, Michele Triplett. All rights reserved.